It is in Perth state WA, country Australia
How we found it
In our history we found out William was the finder of Australia so we looked up William da viammingh statue and then it came up with Perth on images and it was in Australia Perth

Why it was made it was probably made because it was the one who found Australia

This is in the Swan River. This is because if you zoom in there is a sign on the side saying Willem de Vlamingh. I found out Willem found the Swan River. Also why else would there be Perth City in the background and also a Swan right there.